public class Test {
    public boolean IsPopOrder (int[] pushV, int[] popV) {
        // write code here
        Stack<Integer> stack = new Stack<>();

        int j = 0;
        for(int i = 0;i < pushV.length ;i++) {
            stack.push(pushV[i]);

            while(!stack.empty() && j < popV.length && stack.peek() == popV[j]) {
                stack.pop();
                j++;
            }
        }
        return stack.empty();
    }
    public boolean IsPopOrder (int[] pushV, int[] popV) {
        // write code here
        Stack<Integer> stack = new Stack<>();

        int j = 0;
        for(int i = 0;i < pushV.length ;i++) {
            stack.push(pushV[i]);

            while(!stack.empty() && j < popV.length && stack.peek() == popV[j]) {
                stack.pop();
                j++;
            }
        }
        return stack.empty();
    }
    public boolean IsPopOrder (int[] pushV, int[] popV) {
        // write code here
        Stack<Integer> stack = new Stack<>();

        int j = 0;
        for(int i = 0;i < pushV.length ;i++) {
            stack.push(pushV[i]);

            while(!stack.empty() && j < popV.length && stack.peek() == popV[j]) {
                stack.pop();
                j++;
            }
        }
        return stack.empty();
    }
}
